OB module: ad-hoc meeting

Monday 11 Aug 2025, 14:00 → 15:30 Europe/London

Marcello Borri (staff@stfc.ac.uk), James Julian Glover (University of Birmingham (UK))

Please see Marcello's email for Zoom link.

14:00 → 14:15 University of Birmingham

Speakers: Che Sum Tse (University of Birmingham UK), James Julian Glover (University of Birmingham (UK))

ApplyingVacuum_x16.mp4

HandVacTool.mp4

ManualPick+Place.mp4

Removal of 50um thick Si from the GelPaks has been trialled. Si flexes a lot, but does not break.

Trials were done with a handheld vacuum tool and a manual pick and placer (see attached videos). Both only used a single vacuum cup around the centre of the chip's length. Looking to trial a pick-up tool with suction cups towards the end to see whether this minimises the flex in the Si.

JJG is optimistic that the GelPaks could be a viable solution.

14:15 → 14:30 Brunel University

Speaker: Liliana Teodorescu (Brunel University London)

14:30 → 14:45 Daresbury Laboratory

Speakers: Marcello Borri (staff@stfc.ac.uk), Matthew Buckland (staff@stfc.ac.uk), Ken Davies (UKRI STFC Daresbury)

20250729-epicSvtModulePrototypeJigsDesignReviewIntro-rep-2021a10.pdf

Progressing the design of the jig for early prototyping of OB modules.

The jig was design reviewed on 29/07/2025, clarification and implementation of the final refineements is ongoing. [New request [JJG]: to make sure that a consistent shimming can be applied between AncAsic region and LAS region]

Detailing of drawigns will happen in the sencond half of august with the goal of sending all drawring the Liverpool in early Sept.

 

14:45 → 15:00 University of Liverpool

Speaker: Jian Liu (University of Liverpool)

• A few more tests with the optimal settings on thinner diffuser (0.068 mm)
  • Cleaning improved mean pull force and reduced standard deviation
  • Single- and multi-layer foils bonded successfully with nominal tail lengths; longer tails not necessary
  • Some technical details to be clarified with Liam
• The softer wire was ordered
• Jian will be on leave from Aug. 13th to Sep. 15th. Stay reachable via emails and Mattermost

15:00 → 15:10 Other remarks